Street-sweeper.



W. L. KELLOGG. STREET SWEEPER.

APPLICATION FILED JULY 20,1911.

3 SHEETSSHEET l.

Patented Aug. 13, 1912.

W. L. KELLOGG.

STREET SWEEPER.

APPLICATION FILED JULY 20,1911.

1,035,598. Patented Aug. 13,1912.

3 SHEETS-SHBET 2.

W 1 9. I @Homuu W. L. KELLOGG.

STREET SWEEPER.

APPLICATION FILED JULY 20,1911. 1,035,598.

3 SHEETS-SHEET 3.

Patented Aug. 13, 1912.

PATENT OFFICE.

WILLIAM L. KELLOGG, OF INDIANAPOLIS, INDIANA. I

STREET-SWEEPER.

Specification of Letters Patent. Patented All". 13, 1912- Applicationfiled July 20, 1911. Serial No. 639,562.

State ofIndiana, have invented a new and useful Street-Sweeper, of whichthe following is a specification.

The object of my invention is to produce a sweeping machine for sweepingstreets, the

construction being such that the apparatus.

may be self-propelled and such that the dirt from the, gutters, as wellas from the main portion of the street, will be collected and properlydeposited in a receptacle from which it may be discharged from time totime.

' The accompanying drawings illustrate my invention.

Figure 1 is a plan of an apparatus constructed to embody my invention;Fig. 2 a side elevation in partial vertical section; Fig. 3 afragmentary section in front of the gutter brush looking to the rear,and Fig. 4 an enlarged detail of the gutter brush.

-In-the draw ngs, 10 indicates the main body of the vehicle havingsuitable guiding Wheels 11 and traction wheels 12, which may be drivenin any suitable manner from the engine 13. The details of connectionbetween the engine and traction wheels form no part of mypresentinvention and therefore will not be further described.

' Suspended from links 14 beneath the main frame 10-is a' brush casing15 within which is journale d an ordinary rotary brush 16 to be rotatedin the direction indicated by thearrow in Fig. 2. In order, toaccomplish this result, shaft 17 of the brush carries a sprocket wheel18 engaged by the chain 19 which engages a sprocket wheel 21 carried byan intermediate'shaft 22 which, in turn, is driven by a chain 23 drivenby suitable gearing 24 from engine 13. The casing 15 at its lower end isextended into rectangular portions 25 which are provided with flexibledepending aprons 26 which come practically to the street surface and thecasing structure is supported by ground wheels 27.

Leading downwardly into the rear side of the extension 25 is a returntube 28 and leading upwardly from the forward side of the extension 25is a suction tube 29. The suction tube 29 leads to a pipe 31 which isconnected to the eye of a common suction fan '32 which delivers throughpipe 33 into a dust separator and collecting chamber 34 which dischargesthrough a pipe 35 which connects to pi e 28, the arrangement being suchthat the firm 32 may establish a current of air upwardly through pipe 29and downwardly through pipe 28 so that, adjacent the street surfacewithin the extension 25, there will be a current of air movingvforwardly in the direction of movement of the vehicle and the directionof movement of the lower portion of the brush 16.

Mounted in a bracket 41, secured to the side of body 10. near theforward end, is a vertical pin 42 which is threaded at its upper end asindicated at 43 to receive an ad ustinginut 44 by means of which it maybe raised and lowered in the bracket. Pivotally secured to the lower endof pin 42 is one end of'a bracket 45 which, at its opposite end, isprovided with a bearing 46 within which is journaled a shaft 47 to theupper end of which is secured a sprocket wheel 48. A sprocket chain 49passes over wheel 48 and over a wheel 51 carried by the lower end of asleeve 52 which is journaled around pin 42 within .the lower end ofbracket 41. Sleeve 52 at its upper end carries a beveled gear 53 whichmeshes with a gear 54 carried by a shaft 54' connected in any suitablemanner with .the engine. In order to stiffen or support arm 45, byrelieving it of part of the weight of the shaft 47 and the parts carriedthereby, theupper end of such shaft is projected throughgaslotted arm55, so that a collar 45 fixed on such shaft rests on such arm 55. Thearm 55 is carried by the lower end of a vertical pin 56, which is freeto rotate and .which at its upper end is threaded at 57 to receive anadjusting nut 58 so that it may be vertically adjusted to correspondwith the vertical adjustment of pin- 42.

The lower end of shaft 47 carries a spider 61, each of the rotating armsof which is provided with radially extending bearings 62 receiving ahorizontal radially extending pin 63 upon which is pivoted a brush 64.Each brush 64 is provided with an upwardly extending bracket 65 in theupper end of which is journaled a wheel 66 adapted to engage astationary semi-annular cam 67 carried by bearing 46, thearrangementbeing such that, when freefrom the cam 67, the brushes willhang substantially vertical so as to engage the surface of the streetand I will be prevented from rearward tilting by a pin 68 but, whenwheel 66 comes into on gagement with the depi ,ssed portion of cam 6'2,the brush will be given a sudden forwardly, 6., in the direction o itsmotion, thus propelling the k transversely of the street away gutter andtoward the brush it indicated in Fig. 3.

In order to swing; the gutter l as a whole toward and from the gutter,to compensate for the difference in the position of the vehicle relativeto the curb, provide a link 71 which may be either connected to theouter end of arm or, pivotally attached to the upper 4:7. llhe oppositeend of link '71 is pivoted to an arm 72 which is carried by a verticallyarranged rock shaft 73 provided with oppositely extending arms 74 soarranged that they may be readily engaged by the feet of an operatorsitting in the seat 75.

In operation, the brushes 64- are given a general rotary movement in ahorizontal roin tne clearly plane and the brush structure as a whole maybe swung horizontally to bring the tips of the brushes into engagementwith the curb. As the brushes are rotated in a hori-' zontal plane so asto traverse the street, they are intermittently twisted forwardly andupwardly so as to propel the accumulated dirt away from the curb andinto the path of movement of the rotary brush 16. [is the brushIdadvanccs the dirt in front of it is swept forwardly andrupwardly intothe suction tube 29 and this movement is facilitated by the forwardmovement of the air from tube 28. r

I claim as my invention:

3.. In a street sweeper, a gutter brush structure comprising asubstantially vertical rotary shaft, an upwardly tilting brush mountedthereon to tilt on an axis substantially radial to the shaft, means forintermittently upwardly tilting said brush during its horizontalrotation, and means for shifting the brush structure bodilyhorizontally.

2. In a street sweeper, a gutter brush structure comprising asubstantially vertical rotary shaft, an upwardly tilting brush mountedthereon to tilt on. an axis substantially radial to the shaft, and meansfor masses intermittently upwardly tilting said brush during itshorizontal rotation.

'23. In a street sweeper, a gutter brush 4 structure comprising asubstai'itially vertical rotary shaft, an upwardly tilting brush mountedthereon to tilt on an substantially radial to the shaft, means forinterniit'tently upwardly tilting said brush during its horizontalrotation, means for shiftingthe brush structure bodily horizontally, anda horizontal rotary brush arranged to the rear of the gutter brush inthe path of its discharge.

In a street sweeper, a gutter brush structure comprising a substantiallyvertical rotary shaft, an upwardly tilting brush mounted thereon to tilton an axis substantially radial to the shaft, means for intermittentlyupwardly tilting said brush during its horizontal rotation, and ahorizontal rotary brush arranged to the rear of the gutter brush in thepath of its discharge.

In a street sweeper, a gutter brush structure comprising an arm swingingon a vertical axis, a substantially vertical rotary shaft mounted insaid arm, one or more upwardly tilting-brushes carried by said shaft,means for intermittently upwardly tilting said brushes during theirhorizontal rotation, means for swinging said swinging arm about itsaxis, and a second swinging arm mounted on a vertical axis andsupporting the projecting end of the first swinging arm.

6. In a street sweeper, a gutter brush structure comprising an armswinging on a vertical axis, a substantially vertical rotary shaftmounted on said arm, one or more upwardly tilting brushes carriedby saidshaft, means for intermittent-1y upwardly tilting said brushes duringtheir horizontal rotation, and a second swinging arm mounted on avertical axis and supporting the projecting end of the first swingingarm.

In witness whereof, I have hereunto set my hand and seal atIndianapolis, Indiana, this l ith day of July, A, I). one thousand ninehundred and eleven.

lVitnesses:

ARTHUR M. H001), FRANK A. FAHLE.

